package work;

public class Test2 {
    public static void main(String[] args) {
        Student s = new Student();
        s.show();
    }
}

class Student{
    String name;
    int age;
    String address;
    Student(){
        name = "张三";
        age = 20;
        address = "廊坊";
    }
    void show(){
        System.out.println(name+","+age+","+address);
    }
}
